Lime slaker



J 4 4 L w n 0 w 1N1 1 1 3 mn M u 4 a 1. mm m Ill M W. J. KUNTZ March 15,1932.

LIME SLAKER Filed Feb. 5, 1930 Patented Mar. 15, 1932 UNITED STATESWILLIAM JACOB KUNTZ, OF YORK, PENNSYLVANIA LIME SLAKIER Applicationfiled February 5, 1930. Serial No. 426,093.

This invention relates to a lime slaker.

It has been proposed to provide a tower through which the steam carryingthe minute particles of lime is passed and sprayed with Y- water forprecipitating the lime with a chamber within the bottom of the tower toreceive the milk of lime thus formed and retain it until it is desiredto utilize it in a hydrator connected with the tower and from which 10,the lime-charged steam has been evolved. In

this connection it is necessary to stop operation of the plant andinsert a hose in a man- .hole in the tower for flushing out lime whichhad settled to the bottom of the chamber and which clogs the lowerportion of the tower and prevents the milk of lime from being withdrawn.and charged into the hydrator.

An object of the present invention is the provision of a tank embracingthe bottom of the tower and extending laterally from the walls of thetower to form a storage for the milk of lime which falls to the bottomof the tank. A plurality of openings are provided in the bottom wall ofthe tower for placing the tower in communication with the tank so thatthe milk of lime may flow outwardly into the tank and be withdrawn andcharged into the hydrator; If it be found that a considerable quantityof sediment is being deposited in the tank it is only necessary to applythe hose to the outer open end of the tank and exteriorly of the towerfor flushing the sedminet from the tower and the tank withoutnecessitating the shutting down of the plant.

A further object of the invention is the provision of a tower to receivethe lime-laden steam from a hydrator where the steam is sprayed withwater. to precipitate the lime to the bottom of the tower, provisionbeing made to collect the milkof lime thus formed exteriorly of thetower to withdraw the milk of lime for charging the same into thehydrator, sediment collecting in the bottom of the tower and theexternal means being readily flushed from the tower and externally ofthe same without necessitating the shutting down of the plant.

' This invention will be best understood from a consideration of thefollowing detailed description, in view of the accompanying drawlngsforming a part of the specification; nevertheless it is to be understoodthat the invention is not confined to the disclosure, being susceptibleof such changes and modifications which shall define no materialdeparture from the salient features of the invention as expressed in theappended claims.

In the drawings:

Figure 1 is a view in elevation of a hydrator and communicating towerforming the subect-matter of my invention,

Figure 2 is a fragmentary vertical section taken on the line 22 ofFigure 1,

Figure 3 is a horizontal section taken along the line 33 of Figure 2,

Figure 4 is a fragmentary view in elevation with parts broken awayshowing the passages between the tower and tank located exteriorly ofthe tower.

Referring more particularly to the drawings, 10 designates a hydrator ofwell known construction and which is described in my co-pendingapplication, Serial No. 274,580, filed May 2, 1928. One end of thehydrator is in communication by means of a pipe 12 connected wth a drum11 disposed in a horizontal position. One end of the dI'lUIl is providedwith a discharge pipe 13 in communication, at 14, with said drum, and avalve 15 mounted in the pipe 13 is adapted to permit the discharge ofany lime which has collected in the drum.

A tower 20 is supported in a vertical position by any approved means(not shown). This tower has a base 21 provided with a circular opening22 from which depends a flange 23. The tower is open at the top, asshown at 24 in Fig. 1, and is provided with a cap 25 supported by rods26 to permit the escape of steam from the tower as will be presentlyexplained.

At spaced intervals a spraying device 30 is connected with the tower forcausing a fine 5 spray of water to be projecting horizontally of thetower and which spray is adapted to contact with the lime-laden steamrising through the tower and which has been evolved in the member 10during the hydra- 100 tion of the lime. Such a construction provides forthe recovery of those fine particles of lime which are ordinarily"carried oif to the atmosphere while at the same time roducing milk oflime which is carried bac to the hydrator and utilized in the hydrationof the lime for a gr'eateryield. I

A vertically disposed drum 31 is received within the passage 22 in thebase member 2 and is embraced by the flange 23 and sealed to said flangeto prevent the escape-03E limo water from the tower along the sides ofthe drum 31. This drum isin commmiicat'i'on, at 32, with the drum 11. Acap or cover 33 conically-sha ed is secured to the top of the drum bythe ars 3e which p-rovideopenings for the escape ofthe' lime-ladensteamenteriing the drum 31 and the drum 11; This lime ljadfen. steam passesupwardly through 20 water. The base memberfll of the tower the tower andis sprayed at intervals with is extended laterally beyond the outer wallof the tower 20 and, a1 circularflange 40 is secured 'to the exten sion41 of the base member 21 by means of angle irons 42 in order to providean annular tank 43emb acingthe lower end0f l1etower20- It will-be notedthat the tower at its lower end terminates at 44 above the base member21 and is secured to said base member by plurality of communicatingpassages between the lower interior of the tower 20 and the tank 43.

A pair of pipes are located atd-iametrically opposite points and passthrough the extension 41 of thebaseniem-berQl and terlnina-teat 51 belowthe top of the'flange40.

These pipes are carried downwardly and enter one end of the hydrator 10for the purpose of conducting milk of lime from the tank 43 tosaid'hydrator,

" [When the hydrator 10 is in operation limelajden s'team passes throughthe pipes 12, the drum 11, and the Vertically disposed drum 31throughthe passages between the bars 34 at the top of the drum 31',after which the limeladen steam passes upwardly through the tower 20. Ij

At intervals the lime-laden steam is sp-rayedinthe tower with waterwhich precipitates the lime from the steam, causing;the

lime to settle in the form of milk of limeat atthe bottom of the tower20 where it is collected within the tank43. Then this milkof lime 1reaches a predetermined level it is drained on by the pipes 50 andcarried to be found that thick de- .ofjthe tower 20 and in the tank 43.It is only necessary at this timeto apply running water from *the hose"directly to the tank 43 for causing-the thick sludge. onsedimentcollect:

be flushediof sediment. I means of spaced angle irons 4:5 as shown moreV particularly in l3ig 3, thereby providinga of lime to. said slakingmeans.

,cation with the tank so that milk of lime fallmg to the lower end ofthetower willbe coled in the tank and tower to be washed away and passedthrough the pipes 50 to the hydrator 10, It will be seen that thiswashing or cleaning action may be had at any time during the operationof the plant without stopping.

Iclaim: V a V 1 1.7 In a lime 'slaker, a tower, a slaking means incommunicationwith the tower, a water spraying means in the tower, a basemember having anextension projecting laterally from the bottom of thetower, a flange connected to the periphery of the extension and spacedfrom the outer wall of the tower to form with the said base member atank for the storage of, milk of limeiormedin the tower,,. the wall ofthe tower embraced by the tank being provided with openings for placingthe tank in communication with the tower. '7 T 2. In. a lime slaker, atower adapted to receive lime-laden steam from slaking lime, means forsprayingwater-on the lime-laden steam to form milk of lime which fallsto the bottom of the tower,means for collecting the milk of lime at thebottom of said tower,

said means being extended exteriorly ofcthe tower and open to theatmosphere so that said means and the bottomof the t wer may 3111 alime-slaker, a tower, a slaking means in communication with the tower, a

water spraying'means in the tower, a base 7 member having an extensionprojectinglat- "erally irom the bottom of the tower, a flange,connc'cted to the periphery of theex tension and spaced from the outerwall of the tower to. form with the said base member a tank for thestorage of milk of lime, forme'dinthe tower, the wall of the towereinbraced by the tank being provided with openings for; placing the tankin communication with the tower,- vand means connecting the tank withthe slakmg meansfor conducting'the milk 4;, In alime slaker, af-tow'eradapted to I Zreceive lime-laden steam from slaking lime, means forspraying water on the lime-laden steam toforni milk of lime which fallsto the bottom of the tower, a tank; embracing;

the lower end of the tower and having a bottom'co-incident with thebottom of the tower, the tower having passages for placing the lower endof the said tower in communia means for flushing sediment from thebottom of the tank, Y i

' 5. In a lime slaker, a"slakingrmeans, a

tower in communicationwith the slaking means to receive lime-laden steamfrom the slaking means,.a water spraying means in the tower to cause theformation of milk of lime with the lime in the steam, a base member forthe tower having an opening therein, a tubular member fitting saidopening and projecting upon opposite sides of the base member andforming part of the communication between the tower and the slakingmeans, said base being extended laterally beyond the outer wall of thetower, said tower having passages in the lower end at the base member, aflange upstanding from the extension of the base and forming with thebase member and the tubular member a tank for storing milk of limeproduced by the spraying of the lime-laden steam passing into the tower.

6. In a device for removing particles from a fluid, a tower throughwhich the fluid carrying the particles is adapted to pass, an inlet forsaid fluid extending through the bottom of the tower, a hood embracingthe top of the inlet, a water spraying means in the tower adapted tocleanse the fluid of the particles, a tank located at the bottom of thetower surrounding the inlet and adapted to collect the water and therejected particles, said tank extending beyond the periphery of thebottom of the tower, said tower having openings adjacent the tank forplacing the lower end of the tower in communication with the portion ofthe tank which projects beyond the periphery of said tower, and meansfor conducting the water and particles away from the tank, the portionof the tank exteriorly of the tower being open to the atmosphere so thatthe tank may be flushed of sediment.

WILLIAM JACOB KUNTZ.

